Private networks for voice and data are becoming increasingly sophisticated. Using standard ISDN communication inter faces, enhanced signaling and increased processor/switch interactions, private networks are evolving to support a variety of value-added applications. This paper reviews the present capabilities of PBX-based private networks, describes important developments in the areas of PBX and related ISDN network functionality, and illustrates how these developments will be applied to private networks in the future to allow increasingly useful business applications.
{"title":"Private networks: evolution to value-added applications","authors":"C. F. Foard, J. A. Newell, G.J. Ryva","doi":"10.1109/ISS.1990.768708","DOIUrl":"https://doi.org/10.1109/ISS.1990.768708","url":null,"abstract":"Private networks for voice and data are becoming increasingly sophisticated. Using standard ISDN communication inter faces, enhanced signaling and increased processor/switch interactions, private networks are evolving to support a variety of value-added applications. This paper reviews the present capabilities of PBX-based private networks, describes important developments in the areas of PBX and related ISDN network functionality, and illustrates how these developments will be applied to private networks in the future to allow increasingly useful business applications.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125921205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper describes an architecture which provides the structural frame work for the development of a Telecommunications Management Network (TMN). It is intended that this shall be suitable for the management of a broadband, multi-service network such as the Integrated Broadband Communications (IBC) studied in the CEC RACE programme. The approach taken by the authors has been eclectic and synthetic. The sources of information and approaches used have been many. Some of the most important are CCITT Recommendations and drafts, particularly M. 30, the ISO proposals on OSI Network Management, the work of the UK Alvey project on Advanced Network Systems Architecture (ANSA), the work of the US ANSITIM1.5 committee and British Telecom's Open Network Architecture proposals on Management. A synthesis of these ideas has been made and is presented in this paper.
{"title":"An architecture for the management of a broadband, multiservice network","authors":"D. Brown, G. Schapelar, P. Senior, G. Williamson","doi":"10.1109/ISS.1990.768718","DOIUrl":"https://doi.org/10.1109/ISS.1990.768718","url":null,"abstract":"This paper describes an architecture which provides the structural frame work for the development of a Telecommunications Management Network (TMN). It is intended that this shall be suitable for the management of a broadband, multi-service network such as the Integrated Broadband Communications (IBC) studied in the CEC RACE programme. The approach taken by the authors has been eclectic and synthetic. The sources of information and approaches used have been many. Some of the most important are CCITT Recommendations and drafts, particularly M. 30, the ISO proposals on OSI Network Management, the work of the UK Alvey project on Advanced Network Systems Architecture (ANSA), the work of the US ANSITIM1.5 committee and British Telecom's Open Network Architecture proposals on Management. A synthesis of these ideas has been made and is presented in this paper.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127799517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
U. Killat, W. Kowalk, J. Noll, H. Keller, H. J. Fleumerman, U. Ziegler
This contribution deals with a concept for the realization of network nodes in an ATM network. The concept is based on a module called 'M/I -stage', which is derivedfinom the concept of an output buffered switching matrm The M/I -stage is equipped with crosspoint buffers and one output buffer. Taking into account the wiring area of the multiplexed data stream and the area spent for the crosspoint buffers a solution has been developed which minimizes the total chip area of the 'M/I-stage'. Design and implementation of an 8/1-stage as a single IC has been started. Based on this component the architecture of a prototype network node is described.
{"title":"A versatile ATM switch concept","authors":"U. Killat, W. Kowalk, J. Noll, H. Keller, H. J. Fleumerman, U. Ziegler","doi":"10.1109/ISS.1990.770119","DOIUrl":"https://doi.org/10.1109/ISS.1990.770119","url":null,"abstract":"This contribution deals with a concept for the realization of network nodes in an ATM network. The concept is based on a module called 'M/I -stage', which is derivedfinom the concept of an output buffered switching matrm The M/I -stage is equipped with crosspoint buffers and one output buffer. Taking into account the wiring area of the multiplexed data stream and the area spent for the crosspoint buffers a solution has been developed which minimizes the total chip area of the 'M/I-stage'. Design and implementation of an 8/1-stage as a single IC has been started. Based on this component the architecture of a prototype network node is described.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127800027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes the configuration of the Intelligent Digital Mobile Communications Network which is based on the hierarchical function arrangement. The network is layered to the intelligent layer and the transport layer And each layer is also layered to several sub-layers. The network has a capability which guarantees the mobility between plural mobile communications networks. The MSSP (multi-switch simultaneous paging) technique is applied in metropolitan areas to simultaneously page the mobile station through plural switch units in a location area. Moreover, this paper describes the digital mobile subscriber line signalling configuration applied to the digital mobile subscriber line and the mobility guarantee capability of the personal telecommunications numbers in the mobile communications network considering the evolution to the PTN service.
{"title":"Intelligent digital mobile communications network architecture","authors":"A. Nakajima, M. Eguchi, T. Arita, H. Takeda","doi":"10.1109/ISS.1990.768725","DOIUrl":"https://doi.org/10.1109/ISS.1990.768725","url":null,"abstract":"This paper proposes the configuration of the Intelligent Digital Mobile Communications Network which is based on the hierarchical function arrangement. The network is layered to the intelligent layer and the transport layer And each layer is also layered to several sub-layers. The network has a capability which guarantees the mobility between plural mobile communications networks. The MSSP (multi-switch simultaneous paging) technique is applied in metropolitan areas to simultaneously page the mobile station through plural switch units in a location area. Moreover, this paper describes the digital mobile subscriber line signalling configuration applied to the digital mobile subscriber line and the mobility guarantee capability of the personal telecommunications numbers in the mobile communications network considering the evolution to the PTN service.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132065315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents an approach to implementing new services via an advanced attached processor interface to a switching system, considering the needs of both Telecommunications Serv- ice Providers and switching system vendors. This interface provides a level of switching system access and control that meets many of today's needs, while taking into account the realities of the real-time nature of switch processing. First, the needs for service creation capability by other than the switching system vendor are described, Then the strategic direction of using an interface between a switching system and an attached processor to implement new services is presented. We identify the dimensions of attached processor service capabilities using service examples and the characteristics and tradeoffs for points along these dimensions. We conclude with a recommendation that the most attractive alternative is an interface that yields significant service creation capabilities without extensive coupling to the switching system.
{"title":"The reauties of service creation on switching systems through attached processors","authors":"W. L. Honig, B. G. Prieve","doi":"10.1109/ISS.1990.768707","DOIUrl":"https://doi.org/10.1109/ISS.1990.768707","url":null,"abstract":"This paper presents an approach to implementing new services via an advanced attached processor interface to a switching system, considering the needs of both Telecommunications Serv- ice Providers and switching system vendors. This interface provides a level of switching system access and control that meets many of today's needs, while taking into account the realities of the real-time nature of switch processing. First, the needs for service creation capability by other than the switching system vendor are described, Then the strategic direction of using an interface between a switching system and an attached processor to implement new services is presented. We identify the dimensions of attached processor service capabilities using service examples and the characteristics and tradeoffs for points along these dimensions. We conclude with a recommendation that the most attractive alternative is an interface that yields significant service creation capabilities without extensive coupling to the switching system.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134641074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper first discusses the objectives of connectionless cell switching services within Broadband ISDN which is to be developed as an ATM connection-oriented network. It then pro- poses networking techniques for the support of connectionless cell switching services. Schemes which are especially discussed here are addressing and routing mechanisms, and message-based connectionless cell transer schemes suited to connectionless message transportation between users such as LANs and MANs. Finally, this paper presents nodal architectures in which a message switch is proposed to realize an efficient andflexible deployment of connectionless switching, along with a performance evaluation based on an M/G/I queueing model. The connectionless cell switching schemes described in this paper are intended to provide high performance data com munications in B-ISDN for the use of LAN and MAN, which are considered to be a potential initial application of B-ISDN.
{"title":"Connectionless cell switching schemes for broadband ISDN","authors":"K. Yamazaki, Y. Ikeda","doi":"10.1109/ISS.1990.768699","DOIUrl":"https://doi.org/10.1109/ISS.1990.768699","url":null,"abstract":"This paper first discusses the objectives of connectionless cell switching services within Broadband ISDN which is to be developed as an ATM connection-oriented network. It then pro- poses networking techniques for the support of connectionless cell switching services. Schemes which are especially discussed here are addressing and routing mechanisms, and message-based connectionless cell transer schemes suited to connectionless message transportation between users such as LANs and MANs. Finally, this paper presents nodal architectures in which a message switch is proposed to realize an efficient andflexible deployment of connectionless switching, along with a performance evaluation based on an M/G/I queueing model. The connectionless cell switching schemes described in this paper are intended to provide high performance data com munications in B-ISDN for the use of LAN and MAN, which are considered to be a potential initial application of B-ISDN.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130916439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Interim Broadband Network (IBM) of Deutsche Bun-despost Telekom (DBP TELEKOM) is a logical step in the development from the innovative optical-fibre technology to a network for individual broadband communication. Having established a total of 16 broadband exchanges connected by an extensive, supraregional optical-fibre trunk network and having implemented optical-fibre lines in many local net works, DBP TELEKOM put into operation the world's largest switched optical-fibre networkfor broadband applications in the field of individual communications in 1989. According to the present technical concept the IBN has a capacity of about 1000 to 1500 subscribers.
{"title":"The interim broadband network of deutsche blindespost telekom","authors":"W. Gerfen","doi":"10.1109/ISS.1990.768714","DOIUrl":"https://doi.org/10.1109/ISS.1990.768714","url":null,"abstract":"The Interim Broadband Network (IBM) of Deutsche Bun-despost Telekom (DBP TELEKOM) is a logical step in the development from the innovative optical-fibre technology to a network for individual broadband communication. Having established a total of 16 broadband exchanges connected by an extensive, supraregional optical-fibre trunk network and having implemented optical-fibre lines in many local net works, DBP TELEKOM put into operation the world's largest switched optical-fibre networkfor broadband applications in the field of individual communications in 1989. According to the present technical concept the IBN has a capacity of about 1000 to 1500 subscribers.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132753763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This Paper presents how to find quality parameters, which can be used for evaluation of precondidons and quality during early Project Phases. More emphasis is put on parameters measuring human and Project factors in addition to traditional metrics relating to product structure. A set of parameters is used in the project start andlor in the beginning of the subsequent design Phases to defect risk and threat aspects early enough. Examples of parameters given and the method used for evolution of e. g. personnel competence is also presented. Some examples describing the use of this method in connection with real projects will clarify that this method also covers discussions of adjustment actions in order to improve chances for success.
{"title":"A method for analysis of preconditions and quauty in telecommunication switching system software projects","authors":"J. Hirvensalo","doi":"10.1109/ISS.1990.770115","DOIUrl":"https://doi.org/10.1109/ISS.1990.770115","url":null,"abstract":"This Paper presents how to find quality parameters, which can be used for evaluation of precondidons and quality during early Project Phases. More emphasis is put on parameters measuring human and Project factors in addition to traditional metrics relating to product structure. A set of parameters is used in the project start andlor in the beginning of the subsequent design Phases to defect risk and threat aspects early enough. Examples of parameters given and the method used for evolution of e. g. personnel competence is also presented. Some examples describing the use of this method in connection with real projects will clarify that this method also covers discussions of adjustment actions in order to improve chances for success.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115788375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We propose a new optical muhicast switching system based on a two-phase contention resolution algorithm This architec ture may simultaneously support packet switching, and circuat channel emulation. It can handle time-multiplexed variable bit rate random access packets and reserved access packets in a single framework that incorporates unicast and multicast switching. We present the overall switch architecture, its optical device requirements, and possible implementation schemes. Performance enhancements through the addition of multiple tracks are discussed which indicate the flexibility inherent in this design. Results of an analysis of the throughput and switch performance are discussed.
{"title":"A broadband optical multicast switch","authors":"T.T. Lee, M. Goodman, E. Arthurs","doi":"10.1109/ISS.1990.765705","DOIUrl":"https://doi.org/10.1109/ISS.1990.765705","url":null,"abstract":"We propose a new optical muhicast switching system based on a two-phase contention resolution algorithm This architec ture may simultaneously support packet switching, and circuat channel emulation. It can handle time-multiplexed variable bit rate random access packets and reserved access packets in a single framework that incorporates unicast and multicast switching. We present the overall switch architecture, its optical device requirements, and possible implementation schemes. Performance enhancements through the addition of multiple tracks are discussed which indicate the flexibility inherent in this design. Results of an analysis of the throughput and switch performance are discussed.","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116505458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"24 months of commercial isdn experience","authors":"F. Blome, A. Hamich","doi":"10.1109/ISS.1990.766632","DOIUrl":"https://doi.org/10.1109/ISS.1990.766632","url":null,"abstract":"","PeriodicalId":277204,"journal":{"name":"International Symposium on Switching","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116595726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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